Guard-board for couch-rolls.



Patented May |a,'|9o2. .1. A. CONNELLY. GUARD BOARD FOR COUCH BULLS.

(Application filed Feb. 10, 1902.)

(No Model.)

a, Owl/21% Inventor Attorney UNITE-D STATES;

PAT T OF I E;

JAMES A. OONNELLY, or HAMILTON, OHIO, ASSlGNOR or ONE-HALF TO GEORGE F. BLACK, or HAMILTON, OHIO.

GUARD-BOARD FOR COUCH-ROLLS.

SBEGIFICATION forming part of Letters Patent No; 700,133, dated. May 13, 1902.

r licate filed F bruary 10,1902. Sieria11l'qr9330l. (No model.) 5

To all whont it may concern: Beit known that 1, JAMES A. (JoNN LLY, a citizen of the United States, residing atHamilton, Butler county, Ohio, (post-office address care j.Black & OlawsonC Hamilton, Ohio,) have inventedcertain new'andnseful Improvements in j Guard-Boards for Couch- Rolls, of. which the following is aspecifi cation. The couch-roll ofa paper-making machine is covered with a very expensive felt' jacket and is continually washed by running water as it leaves the web of paper,'the guard-board extending along the upperportion of the roll and bearing uponit andpreventing the rear, ward flow of the wash-water and removing foreign matter from the felt. Much trouble has been experienced'in securing the proper action of the. guard-board without rapid wear of the felt jacket and manydevices for the active edge of the guard-board have been ex-- perimented with, including rigid edges, flexible edges, wooden edges, edges formed of rubber, edges formed of laminations of dissimilar flexible materials, and edges formed by inflated flexible tubes.

. My present invention relates to an improvementin-guard-boards, which will be readily understood. from the following description, taken in connection with the accompanying drawjngsfln which- Figure 1 is a front elevation of a couch-roll provided with aguard-board exemplifying my invention; Fig.2, a vertical transverse section of the same, and Fig. 3 a verticaltransverse section at the active portion of the guard-board upon an enlarged scale.

In the drawings, 1 indicates an ordinary couch-roll;-2,its felt jacket; 3, a supportingboardextending'along over the roll, to be rigidly supported after the manner of the usual guard-boards, this supporting-board being,

if desired, the ordinary guard-board, but so supported as to have its usual lower edge free of the couch-roll; 4, the guard-board proper, the same-being'disposed against theface of the supporting-board 3,-the guard-board'4 being formed, preferably,of wood, with its lower edge some distance above the couch roll and preferably some distance above the lower edge of supporting-board 3; 5, a horizontal series of lag-screws passing through vertical slots in guard-board 4 and screwing into supporting-board 3, the heads of these lagrscr'ews, however, standing forward some distance from the front face of guard-board 4; .6, a series of hangers, onefor each of the upwardly beyond'the'u pper edge of the same,

' the lower portion of each hanger e'n'g'agi'ngone of the lag-screws 5 between its head and the guard-board 4, the lag-screws thus serving to lag-screws 5, these hangers lying against the r front face of guard-boardj4 and extending.

clamp the hangers against guard-board4 and v to clamp the latter snugly against supportingboard 3;,7,-rearwardly-turned portions at the.

tops of the hangers 6, the same extending rearwardly and fitting against supporting-board 3 some distance above guard-board 4 andsecured firmly to the supporting board by screws; 8, set-screws screwing downwardly through the upper portionsof-thehangers 6 and having their lower ends engagingthe upper edge of guard-board 4 9, a metallic clampstrip secured againstthe face of guard-board 4 at its lower edge and preferably rabbeted into the face of the guard-board',.the"lower edge of this strip projecting downwardly to, near the couch-roll and some distance below the lower edge of guard-board 4; 10,- a similar metallic clamp-strip similarly disposed atthe 'rear face of guard-board 4, its rear face lying .strip 10, so thatthe surface of the guardboard against which clamp-strip 10 rests is capable of forward flexation; 12, a horizontal series of studs secured, as by riveting, in clampstrip 10 and projecting forwardly there= from through suitable holes in guard-board 4 and front clamp-strip 9, 13, thumb-nuts on the forward ends of these studs; '14, several layers of' felt, such as ,is employed for the jackets of couch rolls, clamped between clamp-strips 9 and 10 and extending from the lower edge of guard-board 4 down to the felt jacket of the couch-roll, on which the lower edges of the felt layers 14 bear with adjusted pressure, and 15 swivels secured to the upper edge of guard-board 4 and engaged by the lower ends of screws 8.

The strips of felt having been cut to proper dimension and in proper number to fill the space between clamp-plates 9 and 10 they may be clamped in place at the lower edge of the guard-board by tightening up thumb-nuts 13, the flexibility resulting from kerf 11 permitting the two clamp-plates to approach each other, and thus hold the felt layers in place on the guard-hoard. The lag-screws 5 hold the guard-board nicely against supportingboard 3, the guard-board being clamped with proper tightness between the supportingboard and the hangers 6. The guard-board may be adjusted vertically by means of screws 8, the multiplicity of these screws permitting of delicate adjustment of the active felt edge of the guard board nicely to the felt jacket of the couch-roll in the original setting and in subsequent adjustment for wear. The felt layers 14 present to the felt jacket of the couch-roll the ends of a great number of vertical yarns forming the vertical elements in the woven layers of felt, the active edge of the guard-board thus acting upon the felt jacket with a delicate brush-like action, the result beinga peculiarlysatisfactory performance of the intended work of the guard-board along with a remarkably small amount of wear upon the expensive jacket of the couchro l.

I claim as my invention 1. In a guard-board for a couch-roll, the combination, substantially as set forth, of a board supported over the couch-roll, front and rear clamp-strips secured to the lower edge thereof, layers of felt clamped between said clamp-strips and extending from the lower edge of said board to the jacket of the couchrolland presenting theirlower edges to the latter, and means for vertically adjusting said board.

2. In a guard-board for a couch-roll, the combination, substantially as set forth, of a board supported over the couch-roll and having a kerf extending up into its lower edge and along its length and near one of its surfaces, clamp-strips secured to the front and rear faces of said board and projecting below the lower edge of the board, flexible material disposed between said clamp-strips and extending from the lower edge of said board down to the jacket of the couch-roll, clampscrews engaging said board and clamp-strips and crossing said kerf, and means for vertically adjusting said board.

3. In a guard-board for a couch-roll, the

combination, substantially as set forth, of a supporting-board disposed over the couchroll, a guard-board disposed against the front surface of said supporting-board and provided with an active edge engaging the jacket of the couch-roll, hangers lyingagainst the front face of saidguard-board and extending upwardly and then rearwardly over the upper edge of the guard -board, screws passing through the lower portions of said hangers and through vertical slotsin said guard-board and into the supporting-board, and screws threaded downwardly through the upper portions of said hangers and engaging the upper edge of said guard-board.

4. In a guard-board for a couch-roll, the combination, substantially as set forth, of a supporting-board disposed over the couchroll, a guard-board disposed against the front surface of said suppo rting-board and provided with an active edge engaging the jacket of the couch-roll, hangers lying against the front face of said guardJJoard and extending upwardly and then rearwardly over the upper edge of the guard-board and secured to said supporting-board, screws passing through the lower portions of said hangers and through vertical slots in said guard-board and into the supporting-board, and screws threaded downwardly through the upper portions of said hangers and engaging the upper edge of said guard-board.

JAMES A. CONN ELLY.

\Vit-nesses:

J. W. SEE, E. R. SHIPLER. 

